Explosive-engine.



mmm ENGINE. APPLIOATIOHPILED 00T. 25, 1906. 954,21 9. Patented Apr. 5, 1910.

2 SHEETS-SHEET 1.

, l5 i l llj 1 L .m

i l x.

I ,Fig. 2 is a top plan view of the same, and

is beyond it in the clearance space. l

2, in which I show a preferred form, 2` repl the ltnunk piston, and 4 the connecting rod.

. an end extension 5 of smaller diameter than the c linder, and arran ed to receive the opened by the` bell crank lever 14, one arm Vtion o Vthe burned gases which remains in with the fresh entering charg .the inner ends ofthe valve casings, and the unTTEDV STAT-Es PATENT Ib all whom 'it may concern: 1

Be it known that I, EDWIN EJ-SLICK. of Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Explosive- Engine.. of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, 1n whicht Figure 1 is a central vertical section showing one form of my improved gas engine:

let valve stem 1l, the valve .being closed ar 16 on the valvestem. shown the'inletvalve as an fautomaticfsuction.valve, which `1s closed .b a. l bearing .against adjustable c o lar 18'01'1=the valve stern 10. This valve however, may be either automatic or may bepositivelygreciprocated by connection withthe moving part of the engine. `The device'lt) Fig. 3.is a partial sectional view of a modilied form. f v 1 My invention relates to the class of explosive engines whereina charge of mixed air andy fuel is fed "into the cylinder and exploded. i The object ofthe invention is to .reduce or lar ely prevent the mixture of that porvalve, as shown.l I have vice .as beingthe ordinary spark valve.V The vigniting `device ,may,"howevei', .be inadeof. an'y desiredcharactenfand its the clearance-.space after the exhaust stroke,

ing: but the cnolin To that-end the invention consists in a either by liouid or uid. andtheclearan'ce clearance chamber extension for the cylin i' space may or may notbe cooled 11s-"desired der in connection with a fuel inletA which is so arranged that the major portion of the waste gases' is beyond the inlet and in thc clearance space.I

It also consists inv arran so that the major portion o ng the igniter the waste gases der axis. In' this case the clearance ber 5 is between the4 valves and forms a In the drawings, referring to Figs. l and 19" 1n its lower portion. I In thls figure parts resents a single-acting engine cylinder, 3 similar to those of Figsi `and 2 are marked The engine cylinder is preferably cast with plied therewpreferably of the four-cycle type, the cycle burne clearance gases. have shown this extension as located centrally at the end of the cylinder, with the inlet valve casing 6 secured in one side thereof close to the end of the cylinder', and the valvevcasingf? for the outlet valve secured in the other side thereof beyond the inlet valve. These valve casings may be screwed, or otherwise secured, in holes in the clearance chamber, and are rferably bast with tubular guides. Sand-9 fbr-the valve, stems 10 and 11. The inlet and outlet valves 12 and 13 seat against the exhaust valve which is then ope the end of this stroke the exhaustA valve closes, and the burned clearance gases fill the entire clearance chamber.

other directlon and the fresh vcharg'ge is drawn in. During this suction inlet Stroke Athe major portion of. the burned clearance inlet valve, .and consequently substantiall the only part of them which is mixed wit the entering charge is the small part which outlet valve is reciprocated by any suitable connections at its outer end beyond the casings. I have shown the outlet valve as Specicatlon of Letters Patent. Pinted 5, 1916,

b the s ing 15 bearin a inst an adust able coli)fr g ga I4 have.

lug screwed into a hole in 4the side .wall ofp the n clearance chamber in .linel withA the :inlet In Fig. 3,1' show aform simil'rito'tliat' f of Figs. l and 2,- exceptthat the inlet :mdv`

outlet valves l2E and 13a are located insideV exter'isio'ns 22A and 23 of 4the cylinders .and reciprocate in 4lines parallel with thezvvin-4 In the operation of the engine, which 95 is carried out in' th`e ordinary manner, and. after "the explosion'the return stroke of the y piston forces out the burned gases thronhv n. t

lies in the space in front of the inlet valve. After this stroke, the inlet valve closes, and

of ehichbuasegainst the end :of the .ont

1s` .preferably located-et :the-innerend of the' clearance chamber-and op ositetorthe'inlet` ustratedthis' de.

.location may be varied. I have' 'shown'zthe v cylinder and clearance chamber as Aprovided with ribs or flanges 20 and 21 for air-'cbol-:-y may be carried ymit sfr clo'sepocket containing the igniting device with similar numerals withthe letter a`api i l ioo The inlet' valve then opens on the next stroke in the gaseslies in the closed pocket beyond 'the' in, y

-`the return'strcke of the piston compresses the charge into the inner portion of the clearance chamber. There will be a-line of demarcation between this charge and the unmixed burned gases, vwhich will then be .compressed into theyouter part of the clearance space; the charge then bein exploded will give a large power, because o 'the small largely preventing the mixture of such burned gases with the entering charge. I can thusfuse aileaner mixture 1n the enterin charge, whileinsuring proper ex losion. y making the clearance space etwecn the piston and the inlet vvalve less than the space between the inlet andoutlet valves,l the outlet valve' being beyond the inlet valve, I greatly reduce the diluting .eii'ectof the burned waste gases on the fresh chargeand increase the power of the"`charge, as wellas make it mo l uniform. By lacing the inletvalve, close to the position o Ithe piston at the endvjof itsstroke `towardfsaid valve, and makin'gthe exhaust valve:1I,i cgxjegrcinote, `I greatly reducethe dilutinmofth mixture, 'since substantiallythe on ylpart of the waste gases which nix'with the fresh charge A is' that between the l inlet lvalve` and the piston. 4 The inlet .valve may be located in a side extension oftlie cylinder at one end instead' cf entering thefclearance chamber; the clearance chamber containing the exhaust valve may extend sidewise Afromne end oftthe' cylinder; the exhaust valve may be placed in any part of the clearance chamber' and* many other changes may bemade without.A departing vfrom my invention.

ciaimz-s 1. 'An explosive enoine cylinder, havi'ngl a clearance chamber oV constant Vvolume with a fuel inlet valve foradmittingacharge mixture intermediate the cylindenand clear.-c ance chamber, the volume o'athel clearance than that between the engine piston and the inlet valve; substantially as described.

2; An explosive engine cylinder, having volumeat one end, an exhaust valve located in the outer part of such clearance chamber and a fuel kinlet valve fora charge mixture entering the/*clearance chamber near thc cylinder arnanfged to give a larger clearance volume between it and thc exhaust valve than-between it and the cylinder proper; substantially as described.

3. An explosive engine cylinder having a clearance extensionchamber at one end, an exhaust valve located within said chamvber and an igniting device arranged at the inner portion of said clearance chamber with the major volume of the clearance chamber -beyond it, thevolnme of the clearance cham- -ber"beingconstant at all speeds of the cngine" together with an 4outlet valve for a charge mixture adjacent to the igniting device; substantially as described. i 'Y 4. An ex losive engine cylinder having exhaust out et and fuel inlet valves and a clearance chamber of fixed volume, an igniting device locatedat the, cylinder end of said clearance chamber,' the igniter and the volumes, the volume of the space be 'ond the igniter and inlet valve being greatei"' tl1an -th'at of' the 'space'between the ignitcr and inlet valve and the piston; substantially described-1 x 5. An explosiye engine, having a clearance chamber'extenslon at one end, 'a fuel inlet valve-lforthe charge mixture, an exhaust valve, said valves communicating withA said- A chamber near opposite ends ther-eef, and an v.igniter adjacent to the inlet valve, the vol# unie of the space withinsaid 'chamber be i youd' the igniter andy inlet valvel being space beyond` the inlet vlallvebeing greater 'a clearance chamber extension of constant' greater than the "olume'of the s acebetween fuel inlet being located in the clearance I`space' to dlvidc this space into two unequal 

